Metal-working apparatus.



'I' R' BLAKESLEE, Jn.g 1 METAL WORKING APPARATUS.

ArPLIoA-TI'ON FILED 111113.24-, v1905.

' zsHBBTs-snssm'g ,MM l@ v y UNITED STATES Parana enrich.

METAL-WORKING APPARATUS.

Specicaton of Letters Patent.

:atented March 26, 1907,

Application filed June 24,1905. Serial No. 266.722.

To @ZZ wiz/0m t may concern: i Be it known that I, JOHN R. BLAKESLEE, lJr., a citizen of the United States, a resident l of Cleveland, countyof Cuyahoga, and State 1 of Ohio, have invented a new and usefulImprovement in Metal-Vorking Apparatus, of l which the 'following is aspecification, the principle of the invention being herein explained andthe best mode in which I have contemplated applying that principle so asto distinguish it from other inventions. My invention relates tometal-working apparatus, and particularly to combined forgl ing machinesand presses which are adapted to impart to heated metal various formsthrough the medium of suitable dies and forming-tools.

Said invention is especially an improvement upon the forging-machineshown and described in United States Letters Patent No. 737,065, issuedto John It. Blakeslee, August 25, 1903.

The object of my invention is to develop a pressing power of greatefficiency and also, in combination with a forging or upsetting machine,such as is shown in the above-mentioned patent, to effect both theforging and pressing operations at one heat, and thus reduce the timeand cost of manufacture and enhance the quality of the finished article.

Said invention consists of mechanism hereinafter fully described, andspecially set forth in the claims.

The annexed drawings and the following description set forth in detailcertain mechanism embodying the invention, such disclosed meansconstituting but one of various mechanical forms in which the principleof l the invention may be used.

In said annexed drawings, Figure l represents a plan view of myinvention comprising an improved press, parts of which are shown insection, in combination with parts of a forging-machine such as is shownin the above-mentioned patent. Fig. 2 represents a broken side elevationlooking in the direc-- tion of the arrow, Fig. l. Fig. 3 represents aside elevation of the two die-blocks, a vertical coimecting-arm, and ashaft formed with two integral lever-arms, one of said arms appearing insaid gure, also a broken elevation of an operating-arm connecting thereciprocatory cross-head and said eccentric arms, the lower die-blockbeing broken away to more plainly show the connections between to thatshown in Fig. 3, with the die-blocksin their inward or closed position.Fig. 5 represents a broken transverse vertical section taken upon theplane indicated by the lines 5 5, Figs. 1 and 2, and Fig. 6 represents aside elevation of one of the lever-arms.

In the working of many metal forms it is necessary to subject the metalto both an upsetting and a pressing operation, and in the making ofeyebars, for instance, it is necesl sary to pass the blanks back andforth between the press and the forging-machine several times and to actupon them alternately by the two machines before the required shape isobtained. In order that this may be satisfactorily accomplished withoutreheating the blank, I have invented the combined forging machine andpress, to be hereinafter fully described. Said press is especiallyadapted also to the finishing of metal forms after they have been workedin the rough by the forging-machine and as constructed develops verygreat power.

Referring particularly to Fig. l, I have shown the frame A of a suitableforging-machine, such as is shown and described in the above-mentionedpatent, having a stationary die-block, suitable dies, and a die-slidereciprocable transversely of the frame in suitablycon/structedslideways. mounted in suitably-constructed slideways and islongitudinally reciprocable, such reciprocation being effected throughthe medium of an operating-pitman B, ournaled upon a crank-shaft C,driven by a driving-gear D. These elements represent in outline theconstruction of the forging-machine described in the above-mentionedpatent. Upon the same frame A, I have mounted my improved press, and Ihave furnished the crankshaft C with an additional eccentric E, adaptedto effect, through the medium of an operating-pitman B', thereciprocation `of a crosshead F, connected to the working parts of thepress. The upper and lower die-blocks of the latter are represented by GCr', respectively, and are connected by two vertical arms H H. The lowerends of said vertical arms I-I H are ournaled upon the ends,respectively, of a transverse shaft I, formed with two integrallever-arms J, between the outer ends of which is journaled a rod K,connected at its other end to the cross-head F. rlhere is provided butone of the connecting-rods K, and, as will be clearly noted from saidarms. Fig. 4 represents a view similar l Fig. 5, the lower die-block Gis provided with A header-slide is IOS IIO

a `transverse recess G2, within which the lever-arms J and the outer endof the arm K rock when the cross-head F is reciprocated. Suitable outercover-plates a a/ are provided for the upper and lower diefblocls,respec tively.

The operation of my improved metalworking apparatus will be readilyunderstood from the foregoing descriptiongtaken in connection with theaccompanying drawings, the open and closed positions ofthe die-blocks ofthe press being illustrated in Figs. 3 and 4, respectively. All of thestrain of the work in vthe press is distributed between the downwardpressing strain upon the parts of the frame below the under die-block G,the pulling strain upon the vertical arms H H, and the transverse strainupon the lever-arms J. Immense power is developed by my improvedconstruction of presses, and I am eni abled to efficiently form manyarticles-such as springs, spring-clips, and eyebolts l which it has beenimpossible to work satisg factorily in devices of this character with 3whichI have heretofore been acquainted. By operating my improved pressin combination with a forging-machine, as mentioned above, I iind thatit is not necessary to reheat the article being operated upon in passingi from the forging-machine to the press, or vice i versa, and that I amthus enabled to produce a better article at a less cost of manufacture.

Having described my invention in detail, that which I particularly pointout and disy tinctly claim isl. In a press, the combination ofdieblocks; a reciprocatory cross-head ,1 a leverarm mounted in one ofsaid die-blocks, and connected to both of said die-blocks, and adaptedto reciprocatelthesamez'relatively to each other and means connectingsaid crossg head and arm. i

2. In a press, the combination of two rela- .l

tively vertically reciprocable die-blocks, the lower of said blockshaving a transverse recess; a shaft journaled in said recessed dieblockand bearing a lever-arm disposed withf in said recess g arms connectingthe other dieblock with said shaft, said arms being eccentricallyattached to the respective ends of the latter; and reciprocatoryactuating means connected with said lever-arm.

3. In a press, the combination of two dieblocks, one of said blockshaving a transverse recess a shaft journaled in said recessed die` blockand bearing a lever-arm disposed within said recess; arms connecting theother dieblock with said shaft, said arms being eccentrically attachedto the respective ends of the latter and means for rocking said shaft,such means comprising a reciprocatory cross-head,

and a connecting-rod attached at one end in said cross-head, and at theother to said lever-arm 4. In a press, the combination of dieblocls; areciprocatory cross-head; a crankshaft journaled in one of saiddie-blocks two g arms connecting opposite sides of the other die-blockand the ends of said crank-shaft,

respectively; and a connecting-arm journaled at one end in saidcross-head and at the other end upon said crank-shaft.

5. In a press, the combination of dieblocks 5 a reciprocatorycross-head; a transverse shaft Journaled 1n one of said diei blocksmeans connecting the other die-block and said shaft g two armseccentrically located upon said shaft and formed integral therewith gand connecting means journaled at one end in said cross-head and at theother end between said eccentric arms. r

Signed by me this 9th day of J une, 1905. J. R. BLAKESLEE, JR. Attest A.E. MERKEL, G. W. SAYWELL.

